During the time of Peter’s writing of 1 Peter many philosophical groups had what were called holiness codes. These codes laid out the moral conduct of people within the group. It should be no surprise to Christians that we also have a holiness code. In fact it is expected since we are required to be “holy as God is holy” (1 Peter 1:16). Thus for us to know how to be “holy in all our conduct” (1 Peter 1:15) we have to have instruction on what that looks like. Peter has been giving this instruction since the second half or chapter 1.